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ORTHOPEDICS

Hip Replacement

PRIMARY TOTAL REPLACEMENT HEALTHY HIP A primary total is a first time hip replacement surgery. Socket lined with Muscle () Why have a hip replaced? The goals of a hip replacement are to get rid of hip and help Tendon you be more active. A hip that is stiff and painful can be replaced with an artificial . This is called hip .

Hip replacements also help with damaged caused by Ball covered , and other hip-related issues. with cartilage (head of the thighbone) Pelvic How the hip works Thighbone The hip is a ball-and-socket-joint. In this case, the ball component () is attached to the top of the femur (long bone of the thigh). The acetabulum (socket) is part of the pelvis. The ball rotating in the socket helps you move your leg.

With a healthy hip, smooth cartilage covering the ends of the thigh Image courtesy of Krames StayWell bone and pelvis allows the ball to glide easily inside the socket. DAMAGED HIP DAMAGED HIP With a damaged hip, the worn cartilage no longer serves as a cushion. The surfaces of these become rough. This Cartilage Joint damage Tendon causes pain when they rub together. The cartilage may wear away, leaving nothing to help the bones move smoothly. Arthritis can cause inflammation and swelling around the joint. This causes pain and stiffness in the hip. (continued) Images courtesy of Krames StayWell ORTHOPEDICS

PRIMARY TOTAL HIP REPLACEMENT (continued) PROBLEMS FROM SURGERY Although hip replacement can help with pain, there’s also the chance that surgery will cause problems. How surgery can help These problems are called complications. Your damaged hip joint can be replaced with new, smooth-surfaced Cup parts called implants. They are made of metal, , and plastic. Usual complications from hip replacement surgery include: Ball Your surgeon will decide which of these are right for you. • A blood-clot in the leg • The rough surfaces of the thigh bone are replaced with • Dislocation (when the ball at the top of the femoral a ball (head) and stem (femoral) component. component comes out of the socket) • Infection • The damaged socket is fitted with a cup (acetabular component) • Nerve injuries lined with a liner of either plastic, ceramic or metal. • Bone fractures How long is the surgery? There is only a small chance that these problems will happen The surgery takes about 1½-2 hours – much less time than Stem and they can almost always be treated or fixed. There are other many other . The time you’ll spend in the hospital is Images courtesy of Krames StayWell complications that can happen, too, but they are rare. also fairly short, about 1-2 days. Will a hip replacement work as well as a normal hip? Blood clot in the leg How long is the recovery? Although a total hip replacement works very well, it’s not a The most common complication of any hip replacement surgery Full recovery takes about 4 months. In the hardest cases, after normal hip. For example, your hip may not hold up during is a blood clot in the leg, or (DVT). 6 to 12 months you will be mostly pain-free, be able to move the vigorous activities as well as a typical healthy hip. hip, and walk with a small limp or no limp at all. • In patients who use blood thinners, a blood clot happens Even so, a hip replacement will help get rid of and to 1 to 5 patients out of 100 (1% to 5%). Infection help you to become more active. • Less than 1 patient out of 100 who has a primary hip You will be given a blood thinning medicine such as Aspirin, replacement will get an infection. Coumadin, or Lovenox to prevent blood clots. You may be asked • 1 to 5 patients out of 100 who have a revision hip to wear a compression device on your lower legs to help with replacement will get an infection. blood flow. If an infection happens, the implants must be removed for 6 weeks REVISION HIP REPLACEMENT If you have a blood clot, you will need to take a blood thinner for to 6 months. During this time you will take antibiotics to cure the A revision hip replacement is any hip replacement surgery after the first one. at least 3 months. If it happens once you’re back at home, you may infection. Once the infection is gone, you will have hip surgery again. need to stay in the hospital again before starting a new blood thinner. Why have a second hip surgery? How long is the recovery? Nerve injuries Dislocation A revision hip replacement surgery fixes problems in the hip Each patient has a custom recovery plan. It is based on the A nerve injury can cause numbness and tingling in the hip, that happen after the first surgery. The most common reasons difficulty of the surgery and how much of the hip was replaced. There is a chance that the ball at the top of your femoral lower leg, and foot. for revision surgery are a painful, loose component (a piece of The plan can be as simple as not exercising, or as complex as component comes out of the hip socket. Dislocations are initially • Less than 1 patient out of 100 will have nerve damage. the new joint), dislocation or infection. using a brace for 6 to 12 weeks. treated without surgery, and 2 out of 3 patients who dislocate never require further surgery. In revision hip surgery, nerve injuries are often caused by scar What if my hip feels fine? Getting ready for surgery tissue that forms around the nerve from previous surgeries. • 1 to 5 patients out of 100 (1% to 5%) who has a primary hip Some patients have no symptoms, but need revision surgery To get ready for a revision hip replacement, you will follow the replacement will get a dislocation and 5 to 15 patients out of 100 because of a worn liner, bone loss, or a component same steps as for a primary hip replacement. A Barnes-Jewish (5% to 15%) of revision hip replacements will become dislocated. Bone fractures that’s loose. Revision surgery will prevent more damage. Center of Excellence Journey Guide will be A bone fracture is a broken bone, such as the thigh bone.

given to you. You will use the guide to learn more about what One of our goals with hip replacement is to equalize leg length • Less than 1 patient out of 100 will have a bone fracture. How long is the surgery? will happen before, during and after surgery. as much as possible. While 90% of primary hip replacements have The surgery takes about 2-4 hours. It is a more complex surgery Fractures are more common in patients with bone loss or when equal leg length after surgery, patients cannot always count on than primary total hip replacement. It takes longer because failed a well-fixed (implant surface tightly fitted to your bone) equal leg length after surgery. In some cases muscles and bone components and scar tissue must be removed. Bone grafts may must be removed. loss associated with revision surgery requires us to change leg also be used to rebuild bone loss in some patients. If a fracture happens, you may need to stay off your leg, wear length. Occasionally, lengthening the leg makes the hip less likely a special brace that keeps your hip from moving, or have surgery to dislocate after surgery. to fix the fracture. ORTHOPEDICS

Hip Replacement Surgery Common Questions & Answers

Q. About how many total hip replacements are Q. When can I…? performed each year at Barnes-Jewish Hospital? 1. Have sex: Sexual activity is not recommended immediately A. More than 800. after surgery. Sexual activity can often resume safely at 4-6 weeks after surgery. Your physical/occupational therapist will Q. How does the doctor decide if I need a total talk about safe ways to have sex without hurting your hip. hip replacement? 2. It depends on the stability of A. That decision is based on: Swim or ride an exercise bike: your hip and what type of exercise bike you will be using. Your 1. How much pain you have on most days. doctor will talk with you about this before you leave the hospital. 2. How hard it is for you to walk. 3. How much this problem keeps you from 3. Play tennis, golf, or other active sports: About 3 to 6 months activities and enjoying your life. after surgery.

4. Go to work: If you have a light duty or desk job, you may Q. How long does the surgery last? return to work as soon after surgery as you are comfortable. A. About 1½-2 hours, depending on the condition Physically demanding jobs may require 6 weeks to 3 months of your hip at the time of surgery. of recovery before returning to work.

Q. How long until bone ingrowth (bone grows on 5. Drive a car: Your doctor will talk with you about this before and into the implant service) happens? you leave the hospital. A. Between 6 weeks and 1 year. Q. How long should I keep doing my physical Q. Why do I have to take a blood thinner after surgery, therapy exercises? and for how long? A. Keep doing your exercises until your first follow-up visit. A. You need to take a blood thinner after surgery to prevent You may be given different exercises at that visit. blood clots. You will need to take it for 4-6 weeks. Keep exercising until your muscles are pain-free and you can Q. When is the adhesive dressing or skin staples removed? walk without a limp. The exercises will keep your muscles strong. A. Typically, the adhesive dressing or skin staples will be removed 2-3 weeks after surgery. Q. Do I need an x-ray 12 months after surgery, even if my hip feels fine? Q. When can I shower? A. The x-ray shows your doctor that no problems are starting. A. You can shower with assistance when approved by your Even if you don’t have any symptoms, an x-ray shows: surgeon. Protection of your incision during showers will be • The amount of bone ingrowth. discussed with you. You will not be able to sit in a tub • The position of the prosthesis. without a tub bench for at least 3 months. • The condition of the bone around the prosthesis.

To speak with an orthopedic clinical specialist, call 314-514-3500.

For more information, visit ortho.wustl.edu/joints

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BJH24901 8/2016